Results 31 to 40 of about 284 (91)

Computation of zeros of nonlinear monotone mappings in certain Banach spaces

open access: yesA Collection of Papers in Mathematics and Related Sciences, a festschrift in honour of the late Galaye Dia, 2018
Let E be a uniformly convex real Banach space with uniformly Gâteaux differentiable norm and E∗ its dual space and let A : E → E∗ be a bounded and uniformly monotone mapping such that A−1(0) 6= ∅.
T. Sow, M. Ndiaye, M. Sene, N. Djitté
semanticscholar   +1 more source

Iterative methods for solving fixed‐point problems with nonself‐mappings in Banach spaces

open access: yesAbstract and Applied Analysis, Volume 2003, Issue 4, Page 193-216, 2003., 2003
We study descent‐like approximation methods and proximal methods of the retraction type for solving fixed‐point problems with nonself‐mappings in Hilbert and Banach spaces. We prove strong and weak convergences for weakly contractive and nonexpansive maps, respectively.
Yakov Alber, Simeon Reich, Jen-Chih Yao
wiley   +1 more source

Local solvability of a constrainedgradient system of total variation

open access: yesAbstract and Applied Analysis, Volume 2003, Issue 6, Page 353-365, 2003., 2003
Suppose X is a real q‐uniformly smooth Banach space and F, K : X → X with D(K) = F(X) = X are accretive maps. Under various continuity assumptions on F and K such that 0 = u + KFu has a solution, iterative methods which converge strongly to such a solution are constructed.
C. E. Chidume, H. Zegeye
wiley   +1 more source

On the proximal point algorithm and demimetric mappings in CAT(0) spaces

open access: yesDemonstratio Mathematica, 2018
In this paper, we introduce and study the class of demimetric mappings in CAT(0) spaces.We then propose a modified proximal point algorithm for approximating a common solution of a finite family of minimization problems and fixed point problems in CAT(0)
Aremu Kazeem O.   +3 more
doaj   +1 more source

Convergence theorems and stability results for Lipschitz strongly pseudocontractive operators

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 31, Issue 10, Page 611-617, 2002., 2002
Suppose that X is an arbitrary real Banach space and T : X → X is a Lipschitz strongly pseudocontractive operator. It is proved that under certain conditions the Ishikawa iterative method with errors converges strongly to the fixed point of T and this iteration procedure is stable with respect to T.
Zeqing Liu, Lili Zhang, Shin Min Kang
wiley   +1 more source

Some Generalizations of Non-Unique Fixed Point Theorems of Ćirić-type for (Φ, ψ)-Hybrid Contractive Mappings

open access: yesAnnales Mathematicae Silesianae, 2019
In this article, we establish some non-unique fixed point theorems of Ćirić’s type for (Φ, ψ)–hybrid contractive mappings by using a similar notion to that of the paper [M. Akram, A.A. Zafar and A.A.
Olatinwo Memudu O.
doaj   +1 more source

Solving GNOVI frameworks involving (γG,λ)-weak-GRD set-valued mappings in positive Hilbert spaces

open access: yes, 2014
First, a new concept, positive Hilbert spaces, is introduced and some fundamental inequalities which are applied to studying the properties of the resolvent operator associated for (γG,λ)-weak-GRD set-valued mappings are introduced and discussed in ...
Hong Gang Li   +3 more
semanticscholar   +1 more source

Bounded solutions of nonlinear Cauchy problems

open access: yesAbstract and Applied Analysis, Volume 7, Issue 12, Page 637-661, 2002., 2002
For a given closed and translation invariant subspace Y of the bounded and uniformly continuous functions, we will give criteria for the existence of solutions u ∈ Y to the equation u′(t) + A(u(t)) + ωu(t)∍f(t), t ∈ ℝ, or of solutions u asymptotically close to Y for the inhomogeneous differential equation u′(t) + A(u(t)) + ωu(t)∍f(t), t > 0, u(0) = u0,
Josef Kreulich
wiley   +1 more source

Approximation solvability for a system of implicit nonlinear variational inclusions with Η-monotone operators

open access: yesDemonstratio Mathematica, 2018
In this paper, we introduce and study a new system of variational inclusions which is called a system of nonlinear implicit variational inclusion problems with A-monotone and H-monotone operators in semi-inner product spaces.
Kim Jong Kyu, Bhat Muhammad Iqbal
doaj   +1 more source

A nonlocal 1-Laplacian problem and median values [PDF]

open access: yes, 2016
In this paper, we study solutions to a nonlocal 1-Laplacian equation. We introduce two notions of solution and prove that the weaker of the two concepts is equivalent to a nonlocal median value property, where the median is determined by a measure ...
Mazón, José M.   +3 more
core   +1 more source

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